Synonyms of knock-down-drag-out

1 Syllable

broil, row, words, brawl, clash, brush, fray

2 Syllables

ruckus, tussle, set-to, ruction, rumpus, scuffle, melee, affray, fracas, to-do, skirmish

3 Syllables

brouhaha, fracases, imbroglio, scrimmage, donnybrook, free-for-all